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/*
 * Copyright (C) 2014 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef SVGAnimatedNumberOptionalNumber_h
#define SVGAnimatedNumberOptionalNumber_h

#include "core/svg/SVGAnimatedNumber.h"
#include "core/svg/SVGNumberOptionalNumber.h"

namespace WebCore {

// SVG Spec: http://www.w3.org/TR/SVG11/types.html <number-optional-number>
// Unlike other SVGAnimated* class, this class is not exposed to Javascript directly,
// while DOM attribute and SMIL animations operate on this class.
// From Javascript, the two SVGAnimatedNumbers |firstNumber| and |secondNumber| are used.
// For example, see SVGFEDropShadowElement::stdDeviation{X,Y}()
class SVGAnimatedNumberOptionalNumber : public SVGAnimatedPropertyCommon<SVGNumberOptionalNumber> {
public:
    static PassRefPtr<SVGAnimatedNumberOptionalNumber> create(SVGElement* contextElement, const QualifiedName& attributeName, float initialFirstValue = 0, float initialSecondValue = 0)
    {
        return adoptRef(new SVGAnimatedNumberOptionalNumber(contextElement, attributeName, initialFirstValue, initialSecondValue));
    }

    virtual void setAnimatedValue(PassRefPtr<SVGPropertyBase>) OVERRIDE;
    virtual bool needsSynchronizeAttribute() OVERRIDE;
    virtual void animationEnded() OVERRIDE;

    SVGAnimatedNumber* firstNumber() { return m_firstNumber.get(); }
    SVGAnimatedNumber* secondNumber() { return m_secondNumber.get(); }

protected:
    SVGAnimatedNumberOptionalNumber(SVGElement* contextElement, const QualifiedName& attributeName, float initialFirstValue, float initialSecondValue);

    RefPtr<SVGAnimatedNumber> m_firstNumber;
    RefPtr<SVGAnimatedNumber> m_secondNumber;
};

} // namespace WebCore

#endif // SVGAnimatedNumberOptionalNumber_h